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Fertilizer Management of Hybrid Rice Cv. Jagoroni Under System of Rice Intensification (sri)in Boro Season

M. N. Parvez
Department of Agronomy, Bangladesh Agricultural University, Mymensingh

N. Islam
Department of Agronomy, Bangladesh Agricultural University, Mymensingh

M. H. Rashid
Department of Agronomy, Bangladesh Agricultural University, Mymensingh

A. K. M. R. Amin
Associate Professor
Department of Agronomy, Sher-E-Banqla Agricultural University, Dhaka

Abstract/ Executive Summary:

An experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, during the period from January to June 2003 with a view to studying the enhancement of growth and yield of Bora rice through modification of SRI (System of Rice Intensification) technique in terms of fertilizer management. The treatments included in the experiment consisted of sixteen levels of fertilizer management. Those were designed to observe the crop response under SRI from no fertilizers or manure application, recommended rate of fertilizers for variety under question and several combinations of manures and fertilizers. The growth parameters viz., plant height and number of total tillers/ hll were significantly higher as influenced by the rate of recommended fertilizer + cowdung @ 2 t/ ha. At harvest, the best plant performance in respect of plant height and number of total tillers/ hill was obtained from the combination of recommended chemical fertilizer + cuwdung @ of 12 t/ ha and 8 t /ha , and number of effective tillers/ hill was obtained from recommended fertilizer + cowdung @ 4 t /ha . The highest number of filled grains/ panicle, number of total spikelets /panicle grain yield and straw yield were obtained when the crop was fertilized with the recommended rate of chemical fertilizer + cowdung @ 2 t/ ha, Growing of Bora rice cv. Jagoroni with combination of recommended rate of chemical fertilizers and cowdung @ 2 t/ ha appeared to be the most promising modification in SRI technique in order to obtain maximum grain yield

Keywords: Fertilizer management, Hybrid rice, Yield, Boro season, SRI.

Location: Mymensingh

Start Date: 01-01-2003

End Date: 01-06-2003

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To study the impact of fertilizer management in terms of using organic and inorganic combinations in SRI technique for the cultivation of Bora rice.

Methodology:

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from January to June 2003. The experimental field was a medium high land with silt loam texture belonging to the non- calcareous dark-grey floodplain soil. The pH value of the soil ranged from 6.6 to 7.0. The climate of the experimental site is characterized by high temperature, high humidity and heavy rainfall with occasional gusty winds in April-September (Kharif season) and scanty rainfall associated with moderately low temperature during October-March (Rabi season). The data were recorded from ten randomly selected hills from each unit plot at 20, 35, 50, 65 and 80 DAT and finally at harvest. The grain and straw yields were recorded from the whole plot after harvesting. The collected data were analyzed statistically following the ANOVA technique and mean differences were adjudged by Duncan's Multiple Range Test (DMRT)

Source of Information: Bangladesh j. crop scl, 2006, 17 (1): 147-153

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Recommended chemical fertilizers in combination with the cowdung @ 4 t /ha produced the highest number of effective tillers/ hill and the second highest number of effective tillers/ hill were produced by the combination of recommended doses of chemical fertilizers with cowdung @ 8 t/ ha and 2 t /ha and the lowest one was found in the control treatment. From these results, it is observed that number of effective tillers/ hill , increased due to combined fertilizer over control. Recommended dose of chemical fertilizers + cowdung @ 2 t/ ha produced the highest number of filled grains/ panicle (145.0) which was identically followed by that obtained in the recommended dose of chemical fertilizers + cowdung @ 4 t/ ha (144.8) and the lowest number of filled grains /panicle (104,8) was obtained from the control treatment. The highest grain yield was obtained from the treatment of recommended chemical fertilizers + cowdung @ 2 t/ ha and the second highest grain yield was recorded from the treatment of recommended chemical fertilizers + cowdung @ 4 t /ha, It was found that straw yield increased due to fertilizer with manure treatments. The highest straw yield was obtained from recommended chemical fertilizers + cowdung @ 2 t /ha.'

Knowledge Management: Journal